Strains of Uronema marinum (Scuticociliatia) co-isolated with amoebae of the genus Neoparamoeba

Mixed infections of histophagous ciliates and Neoparamoeba spp. were diagnosed in gill tissue of farmed turbot, Psetta maxima and Atlantic salmon, Salmo salar during a study of Amoebic Gill Disease (AGD). Ciliates co-isolated from lesions grossly visible on gills of both fish hosts and from two spec...

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Bibliographic Details
Published in:Diseases of Aquatic Organisms
Main Authors: Dyková, I. (Iva), Tyml, T. (Tomáš), Kostka, M. (Martin), Pecková, H. (Hana)
Format: Article in Journal/Newspaper
Language:English
Published: 2010
Subjects:
Uronema marinum
SSU rDNA
histophagous strains
Atlantic salmon
Salmo salar
Turbot
Online Access:https://doi.org/10.3354/dao02168
http://hdl.handle.net/11104/0185488
Description
Summary:Mixed infections of histophagous ciliates and Neoparamoeba spp. were diagnosed in gill tissue of farmed turbot, Psetta maxima and Atlantic salmon, Salmo salar during a study of Amoebic Gill Disease (AGD). Ciliates co-isolated from lesions grossly visible on gills of both fish hosts and from two species of red algae (Lithophyllum racemus, Palmaria palmata) were characterized morphologically and using molecular markers. Sequences of SSU rDNA were determined for six strains of ciliates isolated from hosts collected in geographically distant localities. Of these, sequences of five strains revealed a surprisingly high level of similarity and identified the corresponding strains with Uronema marinum. Thus the set of environmental sequences of U. marinum available in GenBank database to date was supplemented with first sequences of potentially histophagous strains.

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